EP 3461582 A1 20190403 - SYSTEMS AND METHODS FOR TREATING AN ENGINE FLANGE
Title (en)
SYSTEMS AND METHODS FOR TREATING AN ENGINE FLANGE
Title (de)
SYSTEME UND VERFAHREN ZUR BEHANDLUNG EINES TRIEBWERKSFLANSCHES
Title (fr)
SYSTÈMES ET PROCÉDÉS DE TRAITEMENT D'UNE BRIDE DE MOTEUR
Publication
Application
Priority
US 201715719357 A 20170928
Abstract (en)
A method may comprise providing an M-flange (200; 400; 450) of a gas turbine engine (100), wherein the M-flange (200; 400; 450) may comprise a bolt hole (240; 440; 460) therethrough defined by a bolt hole circumference (245; 445; 465) between an inner diameter (204) and an outer diameter (202) of the M-flange (200; 400; 450); heating a mandrel (422; 432; 473); inserting the heated mandrel (422; 432; 473) into the bolt hole (240; 440; 460) such that an outer edge (423; 433) of the heated mandrel (422; 432; 473) contacts the bolt hole circumference (245; 445; 465); and plastically deforming the bolt hole circumference (245; 445; 465) to strengthen the bolt hole circumference (245; 445; 465) in response to the applying the heated mandrel (422; 432; 473), producing a plastically deformed bolt hole (240; 440; 460).
IPC 8 full level
B23P 9/02 (2006.01); B21D 26/08 (2006.01); B24C 1/10 (2006.01); C21D 7/06 (2006.01); F01D 5/06 (2006.01); F01D 25/24 (2006.01); F23R 3/60 (2006.01)
CPC (source: EP US)
B21D 22/022 (2013.01 - US); B21D 26/08 (2013.01 - EP US); B21D 31/04 (2013.01 - US); B23P 9/025 (2013.01 - EP US); B24C 1/10 (2013.01 - US); C21D 7/06 (2013.01 - EP US); C21D 7/08 (2013.01 - EP US); F01D 5/066 (2013.01 - EP US); F01D 25/243 (2013.01 - EP US); F23R 3/60 (2013.01 - EP US); F01D 25/246 (2013.01 - US); F05D 2220/32 (2013.01 - US); F05D 2230/20 (2013.01 - EP US); F05D 2300/10 (2013.01 - US); F23R 2900/00017 (2013.01 - EP US); F23R 2900/00018 (2013.01 - EP US)
Citation (search report)
- [Y] US 2011116931 A1 20110519 - DESSOLY VINCENT [FR], et al
- [Y] JP H04173918 A 19920622 - SUMITOMO METAL IND
- [Y] US 2003167617 A1 20030911 - EASTERBROOK ERIC T [US], et al
- [Y] GB 1218116 A 19710106 - BOEHLER & CO AG GEB [AT]
- [A] EP 3103972 A1 20161214 - UNITED TECHNOLOGIES CORP [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3461582 A1 20190403; EP 3461582 B1 20201104; US 2019091753 A1 20190328
DOCDB simple family (application)
EP 18192299 A 20180903; US 201715719357 A 20170928